JPMorgan Ultra-Short Municipal Income ETF
JMST
556 hedge funds and large institutions have $3.48B invested in JPMorgan Ultra-Short Municipal Income ETF in 2026 Q1 according to their latest regulatory filings, with 52 funds opening new positions, 254 increasing their positions, 178 reducing their positions, and 35 closing their positions.
49% more first-time investments, than exits
New positions opened: 52 | Existing positions closed: 35
43% more repeat investments, than reductions
Existing positions increased: 254 | Existing positions reduced: 178
11% more funds holding in top 10
Funds holding in top 10: 19 → 21 (+2)
2% more funds holding
Funds holding: 547 → 556 (+9)
2% more capital invested
Capital invested by funds: $3.42B → $3.48B (+$60.2M)
0.49% more ownership
Funds ownership: 55.25% → 55.74% (+0.49%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
OA
Oasis Advisors
Forest City,
Iowa
|
+$68.1M |
| 2 |
Citadel Advisors
Miami,
Florida
|
+$25.9M |
| 3 |
Carson Wealth (CWM LLC)
Omaha,
Nebraska
|
+$21.9M |
| 4 |
HWM
HB Wealth Management
Atlanta,
Georgia
|
+$19.1M |
| 5 |
NP
NorthRock Partners
Minneapolis,
Minnesota
|
+$15.7M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
GC
Grimes & Company
Westborough,
Massachusetts
|
-$51.6M |
| 2 |
Corient Private Wealth
Miami,
Florida
|
-$46.1M |
| 3 |
Wealth Enhancement Advisory Services
Plymouth,
Minnesota
|
-$44.7M |
| 4 |
ICP
Interchange Capital Partners
Pittsburgh,
Pennsylvania
|
-$27.3M |
| 5 |
JP Morgan Chase
New York
|
-$18.1M |
JMST Hedge Fund Activity: Q1 2026 in Review
556 of the 8,173 institutional investors tracked by Wall St. Rank reported a position in JPMorgan Ultra-Short Municipal Income ETF (JMST) for Q1 2026, worth a combined $3.48B — up 1.8% from $3.42B a quarter earlier.
Buyers outnumbered sellers: 52 funds opened new JMST positions and 35 closed out — a net gain of 17 holders — while 254 added to existing stakes and 178 trimmed.
The largest buyer was Oasis Advisors, adding an estimated $68.1M. The largest seller was Grimes & Company, cutting an estimated $51.6M.
- 556 institutional investors held JPMorgan Ultra-Short Municipal Income ETF (JMST) as of Q1 2026, up from 547 in Q4 2025.
- Funds reported $3.48B of JPMorgan Ultra-Short Municipal Income ETF stock for Q1 2026, up 1.8% quarter-over-quarter.
- 52 funds opened new JPMorgan Ultra-Short Municipal Income ETF positions in Q1 2026 and 35 closed out, a net change of +17 holders.
- The largest JPMorgan Ultra-Short Municipal Income ETF buyer in Q1 2026 was Oasis Advisors, an estimated $68.1M added.
- The largest JPMorgan Ultra-Short Municipal Income ETF seller in Q1 2026 was Grimes & Company, an estimated $51.6M sold.
Based on aggregated 13F filings for Q1 2026.